[1] Wonkwang Univ Hosp, Dept Cardiovasc Med, 895 Muwang Ro, Iksan 54538, South Korea
[2] Sungkyunkwan Univ, Heart Vasc Stroke Inst, Sch Med, Samsung Med Ctr, 81 Irwon Ro, Seoul 06351, South Korea
[3] Sungkyunkwan Univ, Sch Med, Samsung Med Ctr, Seoul, South Korea
[4] Sungkyunkwan Univ, Kangbuk Samsung Hosp, Sch Med, Seoul, South Korea
[5] Sungkyunkwan Univ, Samsung Changwon Hosp, Sch Med, Seoul, South Korea
[6] Wonkwang Univ Hosp, Iksan, South Korea
[7] Chungbuk Natl Univ, Chungbuk Natl Univ Hosp, Coll Med, Cheongju, South Korea
[8] Chung Ang Univ, Gwangmyeong Hosp, Coll Med, Gwangmyeong, South Korea
[9] Catholic Univ Korea, Uijeongbu St Marys Hosp, Seoul, South Korea
[10] Keimyung Univ, Dongsan Hosp, Daegu, South Korea
[11] Chung Ang Univ, Chung Ang Univ Hosp, Coll Med, Seoul, South Korea
[12] Chungnam Natl Univ, Chungnam Natl Univ Hosp, Coll Med, Daejeon, South Korea
[13] Inje Univ, Ilsan Paik Hosp, Goyang, South Korea
[14] Hallym Univ, Sacred Heart Hosp, Cardiovasc Ctr, Anyang, South Korea
[15] Seoul Natl Univ, Bundang Hosp, Seongnam, South Korea
[16] Gyeongsang Natl Univ, Gyeongsang Natl Univ Hosp, Sch Med, Jinju, South Korea
[17] Catholic Univ Korea, Incheon St Marys Hosp, Seoul, South Korea
[18] Hanyang Univ, Seoul Hosp, Coll Med, Seoul, South Korea
[19] Hanyang Univ, Myongji Hosp, Goyang, South Korea
[20] Kyung Hee Univ Hosp Gangdong, Seoul, South Korea
[21] Ewha Womans Univ, Coll Med, Seoul, South Korea
[22] Pusan Natl Univ, Yangsan Hosp, Yangsan, South Korea